This version of 12448 is submitted solely for the purpose of executing Visit 63 on or about February 2, 2013.----- Attempting Submission 8 (Fri Nov 16 16:20:56 GMT 2012) -----
----- Attempting Submission 9 (Wed Jan 16 22:06:28 GMT 2013) -----This version is submitted solely for the purpose of executing Visit 62, which is very similar to previously executed Visit 61.Towards a Detailed Understanding of T Pyx, Its Outbursts and ShellThe well-known recurrent nova T Pyx is undergoing an outburst, the only one HST will ever observe for this object. Because of the existence of the shell from previous eruptions, T Pyx is in a unique position to answer long-standing questions about both binary stellar evolution and novae - the most common major stellar explosions in the universe. This opportunity allows us to dissect T Pyx's surrounding with various light echo techniques. While the flash from the current eruption serves as a probe of the shell, the shell itself serves as a mirror that reflects the current eruption to us, repeatedly, from multiple angles. Although a series narrow-band HST observations to observe the light echo are already planned, those observations will not provide most of the information needed to take full advantage of the shell around this nova. We propose the first urgent installment of a more extensive program of spectroscopy and multi-band imaging that will both enhance the value of the approved narrow-band imaging as well as enable a much more comprehensive investigation of both the old nova shell and the physics of the current eruption. In particular, our proposed observations will provide an unambiguous determination of the geometry and kinematics of the shell, its mass, density, composition and energetics. Due to the practicalities of scheduling HST and the evolution of T Pyx, the first epoch of spectroscopic observation must occur before 2011 May 23, so is herein submitted as a Director's Discretionary proposal for four orbits.Scheduling constraints require that these visits be completed by December 7, 2011. The purpose of these observations is to obtain four spectra of groups of circumstellar knots in the vicinity of recurrent nova T Pyx, currently in outburst at about magnitude V = 12 (no longer at V = 8). These slits need to be placed within 0.1 arcsec to be maximally effective. Each visit contains an ACQ with the 50CCD, then a ACQ/PEAK with the 52X0.1 aperture using MIRROR. Once T Pyx is peaked, the telescope is then offset with a POS TARG North or South (up to 5.3 arcsec) to place the knots in the aperture 52X2 and observe with G750L followed by G430L. Exposures are split into 375s, 375s and 80s, with the latter as a hedge against overexposure. At the end of visibility is a fringe flat for G750L.N/ANone.HOT STARS0false0.00.0falsefalsefalsefalseSUPPORTEDSTARNOVA-LIKEThis object was generated by the targetselector and retrieved from the SIMBAD database.J2000J2000STIS/CCDImagingYesNoWEDGEA2.0STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG750L7751POS-TARGDITHER0.270LINEfalsefalse346.84WFC3-UVIS-DITHER-LINE-3PT1falseThe scheduling data was generated by CASM 19.0.CASM was run in Phase II mode.The Visit Planner indicates that Visit 01 can be scheduled until May 28, 2011. POS TARG puts the slit 4.675 arcsec North of T Pyx.(Tic-Visit
:proposal-id 12448
:visit-id "01"
:proposal-version -1
:trans-version "20100902"
:date "08-May-2011 14:16:16.0"
:trans-errors '(:WARNINGS 4 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 148208
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12448
:visit-id "01"
:obset-id "01"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12448
:visit-id "01"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2942
:al-overhead-at-end 0
:internal-dur-at-end 659
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3275
:pcs-gap 0
)true10The scheduling data was generated by CASM 19.0.CASM was run in Phase II mode.The Visit Planner indicates that Visit 01 can be scheduled until May 23, 2011. POS TARG puts the slit 1.400 arcsec North of T Pyx.1305794994000106.39999999999998(Tic-Visit
:proposal-id 12448
:visit-id "02"
:proposal-version -1
:trans-version "20120604"
:date "17-Jul-2012 15:55:01.0"
:trans-errors '(:WARNINGS 5 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 148208
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12448
:visit-id "02"
:obset-id "02"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12448
:visit-id "02"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2942
:al-overhead-at-end 0
:internal-dur-at-end 657
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3267
:pcs-gap 0
)true11The scheduling data was generated by CASM 19.0.CASM was run in Phase II mode.The Visit Planner indicates that Visit 01 can be scheduled until May 23, 2011. POS TARG puts the slit 1.538 arcsec South of T Pyx.1305800744000102.89999999999998(Tic-Visit
:proposal-id 12448
:visit-id "03"
:proposal-version -1
:trans-version "20120604"
:date "17-Jul-2012 16:03:26.0"
:trans-errors '(:WARNINGS 5 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 148208
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12448
:visit-id "03"
:obset-id "03"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12448
:visit-id "03"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2942
:al-overhead-at-end 0
:internal-dur-at-end 657
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3267
:pcs-gap 0
)true11The scheduling data was generated by CASM 19.0.CASM was run in Phase II mode.The Visit Planner indicates that Visit 01 can be scheduled until May 23, 2011. POS TARG puts the slit 4.575 arcsec South of T Pyx.130580649300098.0(Tic-Visit
:proposal-id 12448
:visit-id "04"
:proposal-version -1
:trans-version "20120604"
:date "17-Jul-2012 16:03:34.0"
:trans-errors '(:WARNINGS 5 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 148208
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12448
:visit-id "04"
:obset-id "04"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12448
:visit-id "04"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2942
:al-overhead-at-end 0
:internal-dur-at-end 657
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3267
:pcs-gap 0
)true11The Visit Planner indicates that Visit 01 can be scheduled until May 28, 2011. POS TARG puts the slit 4.675 arcsec North of T Pyx.
Copy of visit 01 with slight change to ACQ exposure.1306398633000113.19999999999999(Tic-Visit
:proposal-id 12448
:visit-id "11"
:proposal-version -1
:trans-version "20120604"
:date "17-Jul-2012 16:03:47.0"
:trans-errors '(:WARNINGS 5 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 148208
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12448
:visit-id "11"
:obset-id "11"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12448
:visit-id "11"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2947
:al-overhead-at-end 0
:internal-dur-at-end 657
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3267
:pcs-gap 0
)true11The scheduling data was generated by CASM 19.3.CASM was run in Phase II mode.This proposal is submitted solely for the execution of Visit 12, which should be executed by July 9, 2011 and consists of one orbit. It is composed of three pairs of exposures in FQ422M, F547M and F225W, with each pair of exposures consisting of a short exposure and one three times longer. The total times in each band are 300, 500 and 1197s, respectively.1310165359000149.7675404783974(Tic-Visit
:proposal-id 12448
:visit-id "12"
:proposal-version -1
:trans-version "20120604"
:date "17-Jul-2012 16:03:59.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 422320
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12448
:visit-id "12"
:obset-id "12"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12448
:visit-id "12"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2942
:al-overhead-at-end 165
:internal-dur-at-end 498
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3267
:pcs-gap 0
)true11The scheduling data was generated by CASM 19.3.CASM was run in Phase II mode.This version (Sep. 8, 2011) of proposal GO/DD 12448 is submitted solely for the purpose of executing Visit 13, which consists of one orbit and should be executed as soon as possible and hopefully by September 24, 2011. It is composed of four pairs of WFC3/UVIS exposures in FQ422M, F547M, F225W and F600LP, with each pair consisting of a short exposure and one three times longer. The total exposure times in each band are 300, 500, 800 and 40s, respectively.1316472706000236.7190095663285(Tic-Visit
:proposal-id 12448
:visit-id "13"
:proposal-version -1
:trans-version "20120604"
:date "17-Jul-2012 16:04:11.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 563088
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12448
:visit-id "13"
:obset-id "13"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12448
:visit-id "13"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2965
:al-overhead-at-end 167
:internal-dur-at-end 652
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3267
:pcs-gap 0
)true11The scheduling data was generated by CASM 19.3.CASM was run in Phase II mode.This version (Sep. 15, 2011) of proposal GO/DD 12448 is submitted solely for the purpose of executing Visit 14, which consists of one orbit and should be executed between September 24 & 26, 2011. It is composed of four pairs of WFC3/UVIS exposures in FQ422M, F547M, F225W and F600LP, with each pair consisting of a short exposure and one three times longer. The total exposure times in each band are 300, 500, 800 and 40s, respectively.(Tic-Visit
:proposal-id 12448
:visit-id "14"
:proposal-version -1
:trans-version "20110509"
:date "15-Sep-2011 12:14:05.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 563088
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12448
:visit-id "14"
:obset-id "14"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12448
:visit-id "14"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2965
:al-overhead-at-end 167
:internal-dur-at-end 654
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3275
:pcs-gap 0
)true11The scheduling data was generated by CASM 19.3.CASM was run in Phase II mode.This version (Sep. 21, 2011) of proposal GO/DD 12448 is submitted solely for the purpose of executing Visit 15, which consists of one orbit and should be executed between September 24 & 28, 2011, AND EXECUTED INSTEAD OF VISIT 14!!!. It is composed of two triplets of WFC3/UVIS exposures in FQ422M and F547M, with each triplet consisting three exposures of equal duration. The total exposure times in each band are 1125 and 900 seconds, respectively.1317020862000243.8984408192386(Tic-Visit
:proposal-id 12448
:visit-id "15"
:proposal-version -1
:trans-version "20120604"
:date "17-Jul-2012 16:04:17.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 422320
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12448
:visit-id "15"
:obset-id "15"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12448
:visit-id "15"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2941
:al-overhead-at-end 165
:internal-dur-at-end 498
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3267
:pcs-gap 0
)true11The scheduling data was generated by CASM 19.3.CASM was run in Phase II mode.This version (Nov. 2, 2011) of proposal GO/DD 12448 is submitted solely for the purpose of executing Visits 16 & 17, which consists of one orbit per visit and should be executed between November 16 & 20, 2011 for Visit 16 and between November 23 & 27 for Visit 17. Visit 16 is composed of two triplets of WFC3/UVIS exposures in FQ422M and F547M, with each triplet consisting of exposures of equal duration. The total exposure times in each band are 1125 and 900 seconds, respectively. Visit 17 is composed of four pairs of exposures with WFC3/UVIS in FQ422M, F547M, F225W and F600LP, with each pair consisting of a short exposure and one three times longer. The total exposure times in each band are 300, 500, 800 and 40s, respectively.1321401721000288.09328380089187(Tic-Visit
:proposal-id 12448
:visit-id "16"
:proposal-version -1
:trans-version "20120604"
:date "17-Jul-2012 16:04:22.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 422320
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12448
:visit-id "16"
:obset-id "16"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12448
:visit-id "16"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2941
:al-overhead-at-end 165
:internal-dur-at-end 498
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3267
:pcs-gap 0
)true11The scheduling data was generated by CASM 19.3.CASM was run in Phase II mode.This version (Nov. 2, 2011) of proposal GO/DD 12448 is submitted solely for the purpose of executing Visits 16 & 17, which consists of one orbit per visit and should be executed between November 16 & 20, 2011 for Visit 16 and between November 23 & 27 for Visit 17. Visit 16 is composed of two triplets of WFC3/UVIS exposures in FQ422M and F547M, with each triplet consisting three exposures of equal duration. The total exposure times in each band are 1125 and 900 seconds, respectively. Visit 17 is composed of four pairs of exposures with WFC3/UVIS in FQ422M, F547M, F225W, with each pair consisting of a short exposure and one three times longer. The total exposure times in each band are 300, 500, 800 and 40s, respectively.1322181870000294.7169504173359(Tic-Visit
:proposal-id 12448
:visit-id "17"
:proposal-version -1
:trans-version "20120604"
:date "17-Jul-2012 16:04:27.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 563088
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12448
:visit-id "17"
:obset-id "17"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12448
:visit-id "17"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2965
:al-overhead-at-end 167
:internal-dur-at-end 652
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3267
:pcs-gap 0
)true11The scheduling data was generated by CASM 19.3.CASM was run in Phase II mode.This version (Nov. 16, 2011) of proposal GO/DD 12448 is submitted solely for the purpose of executing Visits 18, which consists of one orbit per visit and should be executed between December 1 & 3, 2011. Visit 18 is composed of a triplet of WFC3/UVIS 860s exposures in F547M.1322762681000299.6570520103627(Tic-Visit
:proposal-id 12448
:visit-id "18"
:proposal-version -1
:trans-version "20110509"
:date "16-Nov-2011 14:54:05.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 211168
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12448
:visit-id "18"
:obset-id "18"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12448
:visit-id "18"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2942
:al-overhead-at-end 165
:internal-dur-at-end 269
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3275
:pcs-gap 0
)true10The scheduling data was generated by CASM 19.3.CASM was run in Phase II mode.We need this visit scheduled before December 7, 2011. POS TARG puts the slit 4.2 arcsec North of T Pyx.1323107636000296.0(Tic-Visit
:proposal-id 12448
:visit-id "19"
:proposal-version -1
:trans-version "20120604"
:date "17-Jul-2012 16:04:34.0"
:trans-errors '(:WARNINGS 4 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 184496
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12448
:visit-id "19"
:obset-id "19"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12448
:visit-id "19"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2935
:al-overhead-at-end 0
:internal-dur-at-end 676
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3267
:pcs-gap 0
)true11The scheduling data was generated by CASM 19.3.CASM was run in Phase II mode.We need this visit scheduled before December 7, 2011. POS TARG puts the slit 5.0 arcsec South of T Pyx.1323113384000296.0(Tic-Visit
:proposal-id 12448
:visit-id "20"
:proposal-version -1
:trans-version "20120604"
:date "17-Jul-2012 16:04:40.0"
:trans-errors '(:WARNINGS 4 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 184496
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12448
:visit-id "20"
:obset-id "20"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12448
:visit-id "20"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2935
:al-overhead-at-end 0
:internal-dur-at-end 676
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3267
:pcs-gap 0
)true11The scheduling data was generated by CASM 19.3.CASM was run in Phase II mode.We need this visit scheduled before December 7, 2011. POS TARG puts the slit 1.7 arcsec North of T Pyx.1323119132000286.0(Tic-Visit
:proposal-id 12448
:visit-id "21"
:proposal-version -1
:trans-version "20120604"
:date "17-Jul-2012 16:04:46.0"
:trans-errors '(:WARNINGS 4 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 184496
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12448
:visit-id "21"
:obset-id "21"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12448
:visit-id "21"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2935
:al-overhead-at-end 0
:internal-dur-at-end 676
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3267
:pcs-gap 0
)true11The scheduling data was generated by CASM 19.3.CASM was run in Phase II mode.We need this visit scheduled before December 7, 2011. POS TARG puts the slit 2.0 arcsec South of T Pyx.1323124880000314.0(Tic-Visit
:proposal-id 12448
:visit-id "22"
:proposal-version -1
:trans-version "20120604"
:date "17-Jul-2012 16:04:52.0"
:trans-errors '(:WARNINGS 4 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 184496
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 12448
:visit-id "22"
:obset-id "22"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 12448
:visit-id "22"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2935
:al-overhead-at-end 0
:internal-dur-at-end 676
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3267
:pcs-gap 0
)true11Timing link suitability includes constraints ([23 After 58] [24 After 58] [25 After 58] [59 After 58] [60 After 58] [61 After 58])The scheduling data was generated by CASM 20.2.CASM was run in Phase II mode.Repeat of failed visit 18.1323555932000306.5425667278622(Tic-Visit
:proposal-id 12448
:visit-id "58"
:proposal-version -1
:trans-version "20120604"
:date "17-Jul-2012 17:35:34.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
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)true11Timing link suitability includes constraints ([23 After 58])The scheduling data was generated by CASM 20.2.CASM was run in Phase II mode.This version (Jan. 4, 2012) of proposal GO/DD 12448 is submitted solely for the purpose of executing Visit 23, which consists of two orbits and should be executed between January 13 and February 3, 2012. Visit 23 is composed of two triplets of WFC3/UVIS 900s exposures in F546M.1327195277000345.1214906738054(Tic-Visit
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)true22Timing link suitability includes constraints ([24 After 58])The scheduling data was generated by CASM 20.2.CASM was run in Phase II mode.This version (Feb. 8, 2012) of proposal GO/DD 12448 is submitted solely for the purpose of executing Visit 24, which consists of two orbits and should be executed between February 22 and 29, 2012. Visit 24 is composed of two triplets of WFC3/UVIS 900s exposures in F546M.132991257600026.060014662261693(Tic-Visit
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)true22Timing link suitability includes constraints ([25 After 58])The scheduling data was generated by CASM 20.2.CASM was run in Phase II mode.This version (May 5, 2012) of proposal GO/DD 12448 is submitted solely for the purpose of executing Visit 25, which consists of two orbits and should be executed between May 19 and 31, 2012. Visit 25 is composed of two triplets of WFC3/UVIS 865s to 900s exposures in F547M.1337613495000113.68359858821327(Tic-Visit
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)true22Timing link suitability includes constraints ([59 After 58])The scheduling data was generated by CASM 20.2.CASM was run in Phase II mode.This version (July 18, 2012) of proposal GO/DD 12448 is submitted solely for the purpose of executing Visit 59, which consists of three orbits and should be executed before August 2, 2012 if possible. Visit 59 is composed of two orbits of WFC3/UVIS exposures on T Pyx and environs followed by one orbit of a STIS pair of CR-split exposures (in G430L and G750L) on T Pyx and environs.
REGARDING DUPLICATIONS:
This is the first epoch in our program in which the central source is not likely to be saturated in our images so we would like to take this opportunity to resolve the closer nebulosity. To interpret our images we would like to also take one short spectrum (consistent with our proposed science) and a series of images in narrow-band filters (F487N, F502N, F656N and F658N) and in our continuum band F547M. While some of these are images in filters not originally proposed, they will help us disentangle the various transitions at different doppler shifts and allow us to discover if structures seen in our broader bands are continuum sources e.g., echoes, or line emission sources. Only one of these filters has been used in another approved HST program on T Pyx in its current outburst (which we discuss below).
The completed program GO/DD 12446 between April 2011 and May 2012 ("Ionization and Light Echoes in the T Pyxidis Nebula," Michael Shara, PI) only ever used the F656N filter. These exposures saturated the inner structure that we wish to study with this filter. Furthermore we expect that T Pyx and surrounding nebulosity will have changed significantly since the final exposure in this program which was completed in May 2012.
Our program 12448 uses G450L and G750L spectroscop of T Pyx and environs. STIS spectra in G430L and G750L were taken of T Pyx in its current outburst as part of completed program GO 12200 ("STIS UV spectroscopy of a bright classical nova during its super soft X-ray phase," Gregory Schwarz, PI), but this was during May - October 2011 when T Pyx was radically different than now. Furthermore our current program proposes and is designed to resolve spatial structure in nova ejecta shells on scales of 0.1-10 arcsec, whereas 12200 uses only the 0.2x0.2 arcsec aperture which cannot be used for studying spatial structure.
Likewise STIS UV spectra (not G430L or G750L) were taken of T Pyx for completed program GO/DD 12799 ("The Unique Recurrent Nova T Pyxidis: The Transition to Quiescence," Edward Sion, PI) which also used only the 0.2x0.2 arcsec aperture.(Tic-Visit
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)true30Timing link suitability includes constraints ([60 After 58])The scheduling data was generated by CASM 20.2.CASM was run in Phase II mode.This version (July 23, 2012) of proposal GO/DD 12448 is submitted solely for the purpose of executing Visit 60, which consists of three orbits and should be executed before August 2, 2012 if possible. Visit 60 is composed of two orbits of WFC3/UVIS exposures on T Pyx and environs followed by one orbit of a STIS pair of CR-split exposures (in G430L and G750L) on T Pyx and environs. THIS VERSION IS IDENTICAL TO THE VERSION SUBMITTED ON JULY 18, 2012, EXCEPT THE APERTURE HAS BEEN CHANGED ON EXPOSURES 26 THROUGH 29. To keep these changes separate, Visit 59 has been changed to Visit 60. DO NOT EXECUTE VISIT 59 IF VISIT 60 IS BEING EXECUTED. UNDER NO CONDITIONS SHOULD BOTH VISITS 59 & 60 BE EXECUTED, ONLY ONE OF THESE VISITS.
REGARDING DUPLICATIONS:
This is the first epoch in our program in which the central source is not likely to be saturated in our images so we would like to take this opportunity to resolve the closer nebulosity. To interpret our images we would like to also take one short spectrum (consistent with our proposed science) and a series of images in narrow-band filters (F487N, F502N, F656N and F658N) and in our continuum band F547M. While some of these are images in filters not originally proposed, they will help us disentangle the various transitions at different doppler shifts and allow us to discover if structures seen in our broader bands are continuum sources e.g., echoes, or line emission sources. Only one of these filters has been used in another approved HST program on T Pyx in its current outburst (which we discuss below).
The completed program GO/DD 12446 between April 2011 and May 2012 ("Ionization and Light Echoes in the T Pyxidis Nebula," Michael Shara, PI) only ever used the F656N filter. These exposures saturated the inner structure that we wish to study with this filter. Furthermore we expect that T Pyx and surrounding nebulosity will have changed significantly since the final exposure in this program which was completed in May 2012.
Our program 12448 uses G450L and G750L spectroscop of T Pyx and environs. STIS spectra in G430L and G750L were taken of T Pyx in its current outburst as part of completed program GO 12200 ("STIS UV spectroscopy of a bright classical nova during its super soft X-ray phase," Gregory Schwarz, PI), but this was during May - October 2011 when T Pyx was radically different than now. Furthermore our current program proposes and is designed to resolve spatial structure in nova ejecta shells on scales of 0.1-10 arcsec, whereas 12200 uses only the 0.2x0.2 arcsec aperture which cannot be used for studying spatial structure.
Likewise STIS UV spectra (not G430L or G750L) were taken of T Pyx for completed program GO/DD 12799 ("The Unique Recurrent Nova T Pyxidis: The Transition to Quiescence," Edward Sion, PI) which also used only the 0.2x0.2 arcsec aperture.1343611773000171.911496656189(Tic-Visit
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(Tic-Orbit
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)true30Timing link suitability includes constraints ([61 After 58])The scheduling data was generated by CASM 20.2.CASM was run in Phase II mode./private/var/folders/ZC/ZCYylVoEHIm8E+rwNIhROU+++TI/-Tmp-/OPVisit4115445104558538871.xmlThis version (September 17, 2012) of proposal GO/DD 12448 is submitted solely for the purpose of executing Visit 61, which consists of one orbit and should be executed before October 11, 2012 if possible. Visit 61 is composed of one orbit of a STIS pair of CR-split exposures (in G430L and G750L) on T Pyx and environs. A nearly identical observation was taken on Visit 60 on July 30, 2012 on one of the three orbits of that visit.1349399095000253.74995772878947(Tic-Visit
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)true10The scheduling data was generated by CASM 20.2.CASM was run in Phase II mode.This version (November 16, 2012) of proposal GO/DD 12448 is submitted solely for the purpose of executing Visit 62, which consists of one orbit and should be executed within two days of November 30, 2012 if possible. Visit 62 is composed of one orbit of a STIS pair of CR-split exposures (in G430L and G750L) on T Pyx and environs. A nearly identical observation was taken on Visit 61.1354258668000299.1310249358927(Tic-Visit
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)true10The scheduling data was generated by CASM 20.2.CASM was run in Phase II mode./private/var/folders/ZC/ZCYylVoEHIm8E+rwNIhROU+++TI/-Tmp-/OPVisit7644931762272568156.xmlThis version (January 16, 2013) of proposal GO/DD 12448 is submitted solely for the purpose of executing Visit 63, which consists of two orbit and should be executed within three days of February 2, 2013 if possible. Visit 63 is composed of one orbit of a STIS pair of CR-split exposures (in G430L and G750L) on T Pyx and environs, and one orbit of WFPC3 images with F502N, with exposure times increasing by factors of two to insure one exposure without source saturation.(Tic-Visit
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:data-volume 398400
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